AMD Radeon HD 7990 vs NVIDIA GeForce GTX 1660 Ti

VS

AMD Radeon HD 7990 NVIDIA GeForce GTX 1660 Ti

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7990 and 6GB VRAM GeForce GTX 1660 Ti to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7990 's Advantages

512 additional rendering cores

NVIDIA GeForce GTX 1660 Ti 's Advantages

Released 5 years and 10 months late

Boost Clock has increased by 77% (1770MHz vs 1000MHz)

More VRAM (6GB vs 3GB)

Lower TDP (120W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 7990

4.096 TFLOPS

GeForce GTX 1660 Ti +32%

5.437 TFLOPS

Radeon HD 7990

VS

GeForce GTX 1660 Ti

Graphics Card

Apr 2013

Release Date

Feb 2019

Southern Islands

Generation

GeForce 16

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

950 MHz

Base Clock

1500 MHz

1000 MHz

Boost Clock

1770 MHz

1500 MHz

Memory Clock

1500 MHz

Memory

3GB

Memory Size

6GB

GDDR5

Memory Type

GDDR6

384bit

Memory Bus

192bit

288.0GB/s

Bandwidth

288.0GB/s

Render Config

-

SM Count

24

32

Compute Units

-

2048

Shading Units

1536

128

TMUs

96

32

ROPs

48

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

768 KB

L2 Cache

1536 KB

Theoretical Performance

32.00 GPixel/s

Pixel Rate

84.96 GPixel/s

128.0 GTexel/s

Texture Rate

169.9 GTexel/s

-

FP16 (half)

10.87 TFLOPS

4.096 TFLOPS

FP32 (float)

5.437 TFLOPS

1024 GFLOPS

FP64 (double)

169.9 GFLOPS

Graphics Processor

Malta

GPU Name

TU116

Malta XT (215-0849026)

GPU Variant

TU116-400-A1

GCN 1.0

Architecture

Turing

TSMC

Foundry

TSMC

28 nm

Process Size

12 nm

4.313 billion

Transistors

6.6 billion

365 mm²

Die Size

284 mm²

Board Design

375W

TDP

120W

750 W

Suggested PSU

300 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

1x DVI 1x HDMI 2.0 1x DisplayPort 1.4a

2x 8-pin

Power Connectors

1x 8-pin

Graphics Features

12 (11_1)

DirectX

12 (12_1)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.3

-

CUDA

7.5

5.1

Shader Model

6.6

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